GOOD LUCK!!
FFA 2015 STATE FINALS AGRICULTURAL MECHANICS WRITTEN EXAM Instructions: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Remain in your seat at all times until excused by the exam instructor. DO NOT mark on this examination sheet. Mark the SCANTRON only. Use #2 pencil only. Place your contestant number where instructed, on the SCANTRON only. When marking your answers, completely fill in the correct answer box. There is only one best answer for each question. The exam monitor will not answer questions during the exam. This is a closed book/closed notes exam!! Calculators are provided if necessary. No notes or other aids are allowed. When you have finished the exam, turn your paper over and remain in your seat. The exam monitor will collect all the papers and answer sheets at the end of the time period. You will then be excused.
GOOD LUCK!! 1. ET stands for a. EvapoTerration b. Engineering Transit c. Environmental Transpiration d. Evapotranspiration e. Extra Terrestrial 2. In drafting your projects, you can combine a 30⁰x60⁰ triangle with a 45⁰ triangle to draw any angle divisible by what? a. 15⁰ b. 20⁰ c. 35⁰ d. 50⁰ e. 65⁰ 3. The final process of tempering steel cutting tools (such as a chisel) involves heating your part to: a. Cherry Red in color b. 1375 degF c. Straw colored d. Light blue in color e. 750 degF
4. A “bottoming tap” is a. For cutting threads only at the bottom of a bored hole b. For cutting threads all the way to the bottom of a tapered hole c. For cutting threads around the bottom of a straight shaft d. For rolling threads that are tapered e. None of the above 5. NPSHa stands for a. Net Positive Spray Handling, position “a” b. National Potash Saving Hour of America c. Net Positive Suction Head, allowable d. National Position Suction Handling e. None of the above 6. Which base metal has the highest melting point? a. Iron b. Aluminum c. Tin d. Copper e. Calpolyium Alloy 7. The “throat” is __________ than the vertical leg on a proper fillet weld. a. Smaller b. Larger c. Equal d. It depends e. None of the above 8. Use of which tool resembles a machining process? a. Drill b. File c. Grinder d. Broach e. All of the above 9. The basic goal in placement of a tensiometer in an agricultural tree crop is to locate the device a. the closest distance to the emission device b. in the root mass of the plant c. the farthest distance away from the emission device d. outside the root mass of the plant e. All of the above
10. If a typical swimming pool holds 40,000 gallons of water, how many swimming pools can be filled by 2 acre-feet of water? a. 8 b. 16 c. 32 d. 64 e. None of the above 11. How many cubic feet of water fit in a 40,000 gallon tank? a. 5348 ft b. 10696 ft c. 4819 ft d. 9639 ft e. None of the above 12. In which location is a GFCI not always required by the National Electrical Code: a. Bathrooms b. Boathouse areas c. Swimming pools d. Outdoor areas e. Garages 13. What factors under the control of the irrigator have the greatest effect on the DU of surface irrigation systems? Assume a heavy soil (such as a clay loam soil). a. How long and how fast the water is applied b. Irrigation time and soil variability c. Type and variability of the soil d. Irrigation time and soil type e. All of the above 14. Which item below is normally used to clean a single cut file? a. grinder with very fine grit b. surform c. file card d. File pick e. none of the above 15. Most lumber is dried down to a a. 25% moisture content b. 15% moisture content c. stable shape that isn’t going to warp significantly further d. B&C e. None of the above
16. A property of brazing that enables full joint penetration is a. Flux-coated filler rod b. Unique base metals c. None of the above d. Flux capacitance of the filler e. Capillary action 17. When “hardfacing” or “hardsurfacing” a part, you should attempt to: a. Use a nickel rod b. Get substantial penetration c. Preheat your workpiece d. A & B e. B & C 18. An electric motor is to power a winch that will lift a 1000 lb object 10 feet in 5 seconds. How much horsepower is required? a. 2000 HP b. 50 HP c. .05 HP d. 3.64 HP e. None of the above 19. When multiple lengths of rebar are used in concrete, they should overlap each other at least ________ bar diameters. a. 50 b. 2 c. 24 d. 15 e. 8 20. What is required to get a good Irrigation Efficiency with pressurized irrigation system? Assume no under-irrigation and at least 50 psi available. a. Uniform soils and good DU b. Uniform soils and level ground c. Good DU and good timing d. Level ground and good DU e. All of the above
21. A No. 80 drill is eighty times the size of a No. 1 drill a. True b. False c. Only if you are looking at high speed steel (HSS) bits d. A & C e. None of the above 22. When sharpening a twist drill, the angle between each of the cutting edges and the center axis of the drill must be: a. 87degrees b. 59 degrees c. The same d. A & B e. B & C 23. Scarfing is a procedure for a. Rapid material removal using an arc welder b. Rapid removal of wood from an oversized wood joint c. BBQ tri-tip consumption resulting in bloating and/or mortality d. Rapid deposition of material using a MIG welder e. None of the above 24. Which tool below should not be used for layout lines on steel? a. lead pencil b. scribe c. dividers d. scratch awl e. compass 25. When multiple lengths of rebar are used in concrete, they should overlap each other at least ________ bar diameters. a. 50 b. 2 c. 15 d. 8 e. 24 26. NPT Pipe threads are a. Variable Pitch b. Variable Diameter c. Variable taper d. Variable angle e. None of the above
27. If you were to rotate a ¼-20 UNC bolt clockwise 10 revolutions, the bolt will have traveled into the hole: a. 1” b. 2” c. ¼” d. 20” e. None of the above 28. The difference between straight and draw filing with a single-cut tool: a. Straight requires a file card b. Draw filing is for aluminum surfacing c. The angles of tool travel are 90 degrees apart d. Straight filing Is a bi-directional operation e. None of the above 29. When pouring concrete, if you have too much water in the mix, a. Your concrete will be weaker b. Your concrete will take longer to dry c. Your concrete will be difficult to pump d. Your concrete will be stronger but harder to form e. None of the above 30. Distortion, a term used to describe an effect heard in amplified electric guitar audio, is also observed in welding when a. Too much heat was used and welds weren’t performed with enough travel speed b. Your parts were not fixtured properly when welding c. Your welds have excessive weld metal d. Parts were not preheated prior to welding e. All of the above 31. Which soil-monitoring tool is not adapted to light soils (such as coarse sandy soils)? a. neutron probe b. tensiometer c. gypsum blocks d. gravimetric readings e. None of the above 32. In surveying, contour lines indicate a. The boundary of a property b. Constant elevation c. Where you have already surveyed d. Where to run your steel tape e. A & C
33. Find the size of a surveyed piece of property of the following dimensions:
250 ft
500 ft
a. 2.86 acres b. 125000ft2 c. A & C d. 1.43 acres e. None of the above 34. In the figure below, filling the two holes with weld metal is known as______________.
a. Fillet Welding b. JB welding c. Flush Welding d. Plug welding e. Spot welding 35. When welding, the deposition rate is a. How fast you move your hand b. How much shielding gas flow is required c. How much filler material is delivered d. The tax and deposit on your high pressure bottles e. None of the above 36. 4140 steel has a carbon content of: a. . 40% b. 41.0% c. 14% d. 41.4% e. 4.0%
37. Most lumber is dried down to a a. 25% moisture content b. stable shape that isn’t going to warp significantly further c. 15% moisture content d. B&C e. None of the above 38. When selecting a tap drill for ½” threads, a. The finer the pitch, the smaller the tap drill b. The finer the pitch, the larger the tap drill c. It will either be 27/64” or 29/64” d. A & C e. B & C 39. A slump test tells you a. The consistency of your wet concrete b. The amount that your concrete has settled after curing c. The amount of aggregate in your mix d. The potential strength of your concrete e. How far down you are sitting in your chair during this exam 40. Which is not a type of file: a. Rat tail b. Flat bastard c. Smooth d. Double cut e. Rat bastard 41. If a hog hair is .005” thick, how many hairs lined up side-by-side will it take to equal 1.000”? a. 20 b. 50 c. 150 d. 250 e. None of the above 42. Which of the following pipe fittings has both male and female threads? a. Elbow b. Tee c. Street Elbow d. Close nipple e. None of the above 43. DC reverse polarity means: a. the electrode is negative, the material is positive b. the electrode is positive, the material is negative c. the electrode and material are both negative d. the electrode and material are both positive e. None of the above
44. When leak testing oxy-acetylene equipment, never use ______ a. WD-40 ® b. Water with soap c. Your sense of hearing d. A & B e. None of the above 45. Overload devices usually include a _____________strip that deflects when its temperature changes. a. Spring b. Bimetal c. Circuit d. Float e. landing 46. Hardfacing is a process used to: a. Strengthen a structure b. Protect your face from flying pieces of metal c. Reduce surface abrasion d. Make you look cool in front of your friends e. Improve the surface finish of a large farm implement 47. An “acetylene feather” a. Is a motion used during oxy-acetylene welding/brazing b. Is characteristic of a flame that gives off excess carbon c. Is the longest part of the flame seen coming from a cutting torch tip d. Is used for detecting leaks on a dissolved gas storage cylinder e. B & C 48. If you were going to pour a 100 yd length of the cross section (shown below) for the design of a curb at a dairy, how much concrete would you need? a. 100 yds b. 2700 cubic ft c. 325 ft^3 d. 12 yd^3 e. C & D
49. If you were going to haul as many of the pieces of channel (pictured below) as possible on a truck that has a max weight capacity of 60,000 lb, how many 20’ lengths could you haul? a. 3000 b. 210 c. 857 d. 17,142 e. 1200
50. PVC cement is: a. A 2-part mix b. A chemical adhesive c. Used for solvent welding d. Used for friction welding e. Reusable if heated to 175degF
References Electrical Wiring, 7th edition. AAVIM publishers. Inch/Metric Tap Drill Sizes and Decimal Equivalents, The Starrett Company. 2011. Landscape Surveying (2nd Edition), Field, Publisher: Cengage. Agricultural Mechanics: Fundamentals and Application, 6th edition. Delmar publishers. Modern Agricultural Mechanics, 2nd Edition. Burke, Wakeman. Interstate Publishers Principles of Irrigation, 3rd Edition, Irrigation Association, 2013. Basic & Non-irrigation Equations & Conversions, Irrigation Association, 2013.
Remain in your seat at all times until excused by the exam instructor. DO NOT mark on this examination sheet. Mark the SCANTRON only. Use #2 pencil only. Place your contestant number where instructed, on the SCANTRON only. When marking your answers, completely fill in the correct answer box. There is only one best answer for each question. The exam monitor will not answer questions during the exam. This is a closed book/closed notes exam!! Calculators are provided if necessary. No notes or other aids are allowed. When you have finished the exam, turn your paper over and remain in your seat. The exam monitor will collect all the papers and answer sheets at the end of the time period. You will then be excused.
GOOD LUCK!! 1. ET stands for a. EvapoTerration b. Engineering Transit c. Environmental Transpiration d. Evapotranspiration e. Extra Terrestrial 2. In drafting your projects, you can combine a 30⁰x60⁰ triangle with a 45⁰ triangle to draw any angle divisible by what? a. 15⁰ b. 20⁰ c. 35⁰ d. 50⁰ e. 65⁰ 3. The final process of tempering steel cutting tools (such as a chisel) involves heating your part to: a. Cherry Red in color b. 1375 degF c. Straw colored d. Light blue in color e. 750 degF
4. A “bottoming tap” is a. For cutting threads only at the bottom of a bored hole b. For cutting threads all the way to the bottom of a tapered hole c. For cutting threads around the bottom of a straight shaft d. For rolling threads that are tapered e. None of the above 5. NPSHa stands for a. Net Positive Spray Handling, position “a” b. National Potash Saving Hour of America c. Net Positive Suction Head, allowable d. National Position Suction Handling e. None of the above 6. Which base metal has the highest melting point? a. Iron b. Aluminum c. Tin d. Copper e. Calpolyium Alloy 7. The “throat” is __________ than the vertical leg on a proper fillet weld. a. Smaller b. Larger c. Equal d. It depends e. None of the above 8. Use of which tool resembles a machining process? a. Drill b. File c. Grinder d. Broach e. All of the above 9. The basic goal in placement of a tensiometer in an agricultural tree crop is to locate the device a. the closest distance to the emission device b. in the root mass of the plant c. the farthest distance away from the emission device d. outside the root mass of the plant e. All of the above
10. If a typical swimming pool holds 40,000 gallons of water, how many swimming pools can be filled by 2 acre-feet of water? a. 8 b. 16 c. 32 d. 64 e. None of the above 11. How many cubic feet of water fit in a 40,000 gallon tank? a. 5348 ft b. 10696 ft c. 4819 ft d. 9639 ft e. None of the above 12. In which location is a GFCI not always required by the National Electrical Code: a. Bathrooms b. Boathouse areas c. Swimming pools d. Outdoor areas e. Garages 13. What factors under the control of the irrigator have the greatest effect on the DU of surface irrigation systems? Assume a heavy soil (such as a clay loam soil). a. How long and how fast the water is applied b. Irrigation time and soil variability c. Type and variability of the soil d. Irrigation time and soil type e. All of the above 14. Which item below is normally used to clean a single cut file? a. grinder with very fine grit b. surform c. file card d. File pick e. none of the above 15. Most lumber is dried down to a a. 25% moisture content b. 15% moisture content c. stable shape that isn’t going to warp significantly further d. B&C e. None of the above
16. A property of brazing that enables full joint penetration is a. Flux-coated filler rod b. Unique base metals c. None of the above d. Flux capacitance of the filler e. Capillary action 17. When “hardfacing” or “hardsurfacing” a part, you should attempt to: a. Use a nickel rod b. Get substantial penetration c. Preheat your workpiece d. A & B e. B & C 18. An electric motor is to power a winch that will lift a 1000 lb object 10 feet in 5 seconds. How much horsepower is required? a. 2000 HP b. 50 HP c. .05 HP d. 3.64 HP e. None of the above 19. When multiple lengths of rebar are used in concrete, they should overlap each other at least ________ bar diameters. a. 50 b. 2 c. 24 d. 15 e. 8 20. What is required to get a good Irrigation Efficiency with pressurized irrigation system? Assume no under-irrigation and at least 50 psi available. a. Uniform soils and good DU b. Uniform soils and level ground c. Good DU and good timing d. Level ground and good DU e. All of the above
21. A No. 80 drill is eighty times the size of a No. 1 drill a. True b. False c. Only if you are looking at high speed steel (HSS) bits d. A & C e. None of the above 22. When sharpening a twist drill, the angle between each of the cutting edges and the center axis of the drill must be: a. 87degrees b. 59 degrees c. The same d. A & B e. B & C 23. Scarfing is a procedure for a. Rapid material removal using an arc welder b. Rapid removal of wood from an oversized wood joint c. BBQ tri-tip consumption resulting in bloating and/or mortality d. Rapid deposition of material using a MIG welder e. None of the above 24. Which tool below should not be used for layout lines on steel? a. lead pencil b. scribe c. dividers d. scratch awl e. compass 25. When multiple lengths of rebar are used in concrete, they should overlap each other at least ________ bar diameters. a. 50 b. 2 c. 15 d. 8 e. 24 26. NPT Pipe threads are a. Variable Pitch b. Variable Diameter c. Variable taper d. Variable angle e. None of the above
27. If you were to rotate a ¼-20 UNC bolt clockwise 10 revolutions, the bolt will have traveled into the hole: a. 1” b. 2” c. ¼” d. 20” e. None of the above 28. The difference between straight and draw filing with a single-cut tool: a. Straight requires a file card b. Draw filing is for aluminum surfacing c. The angles of tool travel are 90 degrees apart d. Straight filing Is a bi-directional operation e. None of the above 29. When pouring concrete, if you have too much water in the mix, a. Your concrete will be weaker b. Your concrete will take longer to dry c. Your concrete will be difficult to pump d. Your concrete will be stronger but harder to form e. None of the above 30. Distortion, a term used to describe an effect heard in amplified electric guitar audio, is also observed in welding when a. Too much heat was used and welds weren’t performed with enough travel speed b. Your parts were not fixtured properly when welding c. Your welds have excessive weld metal d. Parts were not preheated prior to welding e. All of the above 31. Which soil-monitoring tool is not adapted to light soils (such as coarse sandy soils)? a. neutron probe b. tensiometer c. gypsum blocks d. gravimetric readings e. None of the above 32. In surveying, contour lines indicate a. The boundary of a property b. Constant elevation c. Where you have already surveyed d. Where to run your steel tape e. A & C
33. Find the size of a surveyed piece of property of the following dimensions:
250 ft
500 ft
a. 2.86 acres b. 125000ft2 c. A & C d. 1.43 acres e. None of the above 34. In the figure below, filling the two holes with weld metal is known as______________.
a. Fillet Welding b. JB welding c. Flush Welding d. Plug welding e. Spot welding 35. When welding, the deposition rate is a. How fast you move your hand b. How much shielding gas flow is required c. How much filler material is delivered d. The tax and deposit on your high pressure bottles e. None of the above 36. 4140 steel has a carbon content of: a. . 40% b. 41.0% c. 14% d. 41.4% e. 4.0%
37. Most lumber is dried down to a a. 25% moisture content b. stable shape that isn’t going to warp significantly further c. 15% moisture content d. B&C e. None of the above 38. When selecting a tap drill for ½” threads, a. The finer the pitch, the smaller the tap drill b. The finer the pitch, the larger the tap drill c. It will either be 27/64” or 29/64” d. A & C e. B & C 39. A slump test tells you a. The consistency of your wet concrete b. The amount that your concrete has settled after curing c. The amount of aggregate in your mix d. The potential strength of your concrete e. How far down you are sitting in your chair during this exam 40. Which is not a type of file: a. Rat tail b. Flat bastard c. Smooth d. Double cut e. Rat bastard 41. If a hog hair is .005” thick, how many hairs lined up side-by-side will it take to equal 1.000”? a. 20 b. 50 c. 150 d. 250 e. None of the above 42. Which of the following pipe fittings has both male and female threads? a. Elbow b. Tee c. Street Elbow d. Close nipple e. None of the above 43. DC reverse polarity means: a. the electrode is negative, the material is positive b. the electrode is positive, the material is negative c. the electrode and material are both negative d. the electrode and material are both positive e. None of the above
44. When leak testing oxy-acetylene equipment, never use ______ a. WD-40 ® b. Water with soap c. Your sense of hearing d. A & B e. None of the above 45. Overload devices usually include a _____________strip that deflects when its temperature changes. a. Spring b. Bimetal c. Circuit d. Float e. landing 46. Hardfacing is a process used to: a. Strengthen a structure b. Protect your face from flying pieces of metal c. Reduce surface abrasion d. Make you look cool in front of your friends e. Improve the surface finish of a large farm implement 47. An “acetylene feather” a. Is a motion used during oxy-acetylene welding/brazing b. Is characteristic of a flame that gives off excess carbon c. Is the longest part of the flame seen coming from a cutting torch tip d. Is used for detecting leaks on a dissolved gas storage cylinder e. B & C 48. If you were going to pour a 100 yd length of the cross section (shown below) for the design of a curb at a dairy, how much concrete would you need? a. 100 yds b. 2700 cubic ft c. 325 ft^3 d. 12 yd^3 e. C & D
49. If you were going to haul as many of the pieces of channel (pictured below) as possible on a truck that has a max weight capacity of 60,000 lb, how many 20’ lengths could you haul? a. 3000 b. 210 c. 857 d. 17,142 e. 1200
50. PVC cement is: a. A 2-part mix b. A chemical adhesive c. Used for solvent welding d. Used for friction welding e. Reusable if heated to 175degF
References Electrical Wiring, 7th edition. AAVIM publishers. Inch/Metric Tap Drill Sizes and Decimal Equivalents, The Starrett Company. 2011. Landscape Surveying (2nd Edition), Field, Publisher: Cengage. Agricultural Mechanics: Fundamentals and Application, 6th edition. Delmar publishers. Modern Agricultural Mechanics, 2nd Edition. Burke, Wakeman. Interstate Publishers Principles of Irrigation, 3rd Edition, Irrigation Association, 2013. Basic & Non-irrigation Equations & Conversions, Irrigation Association, 2013.
